/*
 * *****************************************************************************
 *  Copyright (C) 2014-2020 Dennis Sheirer
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 * ****************************************************************************
 */

package io.github.dsheirer.gui.control;

import javafx.scene.control.TextFormatter;

import java.util.function.UnaryOperator;

public class MaxLengthUnaryOperator implements UnaryOperator<TextFormatter.Change>
{
    private int mMaxLength;

    public MaxLengthUnaryOperator(int maxLength)
    {
        mMaxLength = maxLength;
    }

    @Override
    public TextFormatter.Change apply(TextFormatter.Change change)
    {
        if(change.isContentChange() && change.getControlNewText().length() > mMaxLength)
        {
            return null;
        }

        return change;
    }
}
